ReadyLift part 69-3920
Fitment and specifications
AT4/Trail Boss Plus 2.0" SST Lift Kit- GM 1500 AT4/Trail Boss 4WD 2019-2024 (part number 69-3920). - 69-3920 +2" SST Lift Kit: 2019-2023 GM AT4 & Trail Boss. - 2" front lift combines with factory 2" lift. - CNC-machined billet aluminum top spacer and pre-load spacer kit with heavy-duty control arms - 1-ton ball joints and maintenance-free pivot bushings - Includes 3" tall OE style cast iron rear lift blocks with new U-bolts Fitment and Installation Notes - Not compatible with Sierra AT4X or Silverado ZR2 Edition. - Not compatible with rear mono-leaf springs. Click here to learn how to determine if you have rear mono-leaf springs. - These will not fit late model 2024 or 2025 applications that have round U-bolts. Using U-bolt part number 67-35120UB will allow this kit to fit 2025 applications. - Use of Auto 4 HI feature not recommended. - This GM 1500 kit is NOT COMPATIBLE with vehicles equipped with rear composite mono-leaf springs. The mono-leaf is easily identifiable the U-bolt is round/circular around the top of the leaf spring. This kit only works with vehicle equipped with traditional steel leaf springs identified by square U-bolts.
What is included
CNC machined billet aluminum top mount spacer and pre load spacer. Tubular upper control arms with 1-ton ball joints and TCT pivot bushings. 3" tall OE style cast iron lift blocks with new longer u-bolts
Manufacturer fitment and installation information
Call 604-855-9982 for help confirming your year, model, drivetrain and factory suspension before ordering. Supplier availability is confirmed when ordering; this is not a live stock feed.
Professional installation is recommended. Check alignment, headlamp aim and any required driver-assistance calibration after installation.